| 1. | It also discusses a number of significant semantics changes such as the introduction of implicit boxing , immutability of boxed value types , and the removal of support for default constructors within value classes
还讨论若干重大语义更改，例如隐式装箱的引入、装箱的值类型的不变性，以及对值类内部的默认构造函数的支持的移除。 |
